debian-13-5.4+flambda_opam-2.5

2026-04-16 16:38.21: New job: test ocaml-multicore/eio https://github.com/ocaml-multicore/eio.git#refs/pull/836/head (807ad3dd0c60e1892dae71706411eac219bbfb7c) (linux-x86_64:debian-13-5.4+flambda_opam-2.5)
Base: ocaml/opam:debian-13-ocaml-5.4-flambda@sha256:eb5ed8d5d9e07fac2b9956de5da07948168d714f829b64b17f5a186a39c9742a
Opam project build


To reproduce locally:


git clone --recursive "https://github.com/ocaml-multicore/eio.git" && cd "eio" && git fetch origin "refs/pull/836/head" && git reset --hard 807ad3dd
cat > Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-5.4-flambda@sha256:eb5ed8d5d9e07fac2b9956de5da07948168d714f829b64b17f5a186a39c9742a
# debian-13-5.4+flambda_opam-2.5
USER 1000:1000
ENV CLICOLOR_FORCE="1"
ENV OPAMCOLOR="always"
WORKDIR /src
RUN sudo ln -f /usr/bin/opam-2.5 /usr/bin/opam
RUN opam init --reinit -ni
RUN uname -rs && opam exec -- ocaml -version && opam --version
WORKDIR /src
RUN sudo chown opam /src
RUN cd ~/opam-repository && (git cat-file -e 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 || git fetch origin master) && git reset -q --hard 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 && git log --no-decorate -n1 --oneline && opam update -u
COPY --chown=1000:1000 eio_windows.opam eio_posix.opam eio_main.opam eio_linux.opam eio.opam ./
RUN opam pin add -yn eio_windows.dev './' && \
opam pin add -yn eio_posix.dev './' && \
opam pin add -yn eio_main.dev './' && \
opam pin add -yn eio_linux.dev './' && \
opam pin add -yn eio.dev './'
RUN echo '(lang dune 3.0)' > './dune-project'
ENV DEPS="afl-persistent.1.4 alcotest.1.9.1 astring.0.8.5 backoff.0.1.1 base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base bigstringaf.0.10.0 camlp-streams.5.0.1 cmdliner.2.1.0 conf-bash.1 containers.3.18 cppo.1.8.0 crowbar.0.2.2 csexp.1.5.2 cstruct.6.2.0 domain-local-await.1.0.1 domain-local-timeout.1.0.1 dscheck.0.5.0 dune.3.22.2 dune-configurator.3.22.2 either.1.0.0 fmt.0.11.0 hmap.0.8.1 iomux.0.4 kcas.0.7.0 logs.0.10.0 lwt-dllist.1.1.0 mdx.2.5.2 mtime.2.1.0 multicore-magic.2.3.2 ocaml.5.4.1 ocaml-compiler.5.4.1 ocaml-config.3 ocaml-syntax-shims.1.0.0 ocaml-variants.5.4.1+options ocaml-version.4.0.4 ocamlbuild.0.16.1 ocamlfind.1.9.8 optint.0.3.0 oseq.0.5.1 psq.0.2.1 re.1.14.0 result.1.5 seq.base stdlib-shims.0.3.0 thread-table.1.0.0 topkg.1.1.1 tsort.2.2.0 uring.2.7.0 uutf.1.0.4 yojson.3.0.0"
ENV CI="true"
ENV OCAMLCI="true"
RUN opam update --depexts && opam install --cli=2.5 --depext-only -y eio_windows.dev eio_posix.dev eio_main.dev eio_linux.dev eio.dev $DEPS
RUN opam install $DEPS
COPY --chown=1000:1000 . /src
RUN opam exec -- dune build @install @check @runtest && rm -rf _build


END-OF-DOCKERFILE
docker build .
END-REPRO-BLOCK


2026-04-16 16:38.21: Using cache hint "ocaml-multicore/eio-ocaml/opam:debian-13-ocaml-5.4-flambda@sha256:eb5ed8d5d9e07fac2b9956de5da07948168d714f829b64b17f5a186a39c9742a-debian-13-5.4+flambda_opam-2.5-1f3927ff806dbcf004613c6647de5359"
2026-04-16 16:38.21: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-5.4-flambda@sha256:eb5ed8d5d9e07fac2b9956de5da07948168d714f829b64b17f5a186a39c9742a)
(comment debian-13-5.4+flambda_opam-2.5)
(user (uid 1000) (gid 1000))
(env CLICOLOR_FORCE 1)
(env OPAMCOLOR always)
(workdir /src)
(run (shell "sudo ln -f /usr/bin/opam-2.5 /usr/bin/opam"))
(run (shell "opam init --reinit -ni"))
(run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
(workdir /src)
(run (shell "sudo chown opam /src"))
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "cd ~/opam-repository && (git cat-file -e 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 || git fetch origin master) && git reset -q --hard 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 && git log --no-decorate -n1 --oneline && opam update -u"))
(copy (src eio_windows.opam eio_posix.opam eio_main.opam eio_linux.opam eio.opam)
(dst ./))
(run (network host)
(shell  "opam pin add -yn eio_windows.dev './' && \
\nopam pin add -yn eio_posix.dev './' && \
\nopam pin add -yn eio_main.dev './' && \
\nopam pin add -yn eio_linux.dev './' && \
\nopam pin add -yn eio.dev './'"))
(run (shell "echo '(lang dune 3.0)' > './dune-project'"))
(env DEPS "afl-persistent.1.4 alcotest.1.9.1 astring.0.8.5 backoff.0.1.1 base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base bigstringaf.0.10.0 camlp-streams.5.0.1 cmdliner.2.1.0 conf-bash.1 containers.3.18 cppo.1.8.0 crowbar.0.2.2 csexp.1.5.2 cstruct.6.2.0 domain-local-await.1.0.1 domain-local-timeout.1.0.1 dscheck.0.5.0 dune.3.22.2 dune-configurator.3.22.2 either.1.0.0 fmt.0.11.0 hmap.0.8.1 iomux.0.4 kcas.0.7.0 logs.0.10.0 lwt-dllist.1.1.0 mdx.2.5.2 mtime.2.1.0 multicore-magic.2.3.2 ocaml.5.4.1 ocaml-compiler.5.4.1 ocaml-config.3 ocaml-syntax-shims.1.0.0 ocaml-variants.5.4.1+options ocaml-version.4.0.4 ocamlbuild.0.16.1 ocamlfind.1.9.8 optint.0.3.0 oseq.0.5.1 psq.0.2.1 re.1.14.0 result.1.5 seq.base stdlib-shims.0.3.0 thread-table.1.0.0 topkg.1.1.1 tsort.2.2.0 uring.2.7.0 uutf.1.0.4 yojson.3.0.0")
(env CI true)
(env OCAMLCI true)
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam update --depexts && opam install --cli=2.5 --depext-only -y eio_windows.dev eio_posix.dev eio_main.dev eio_linux.dev eio.dev $DEPS"))
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam install $DEPS"))
(copy (src .) (dst /src))
(run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))
)


2026-04-16 16:38.21: Waiting for resource in pool OCluster
2026-04-16 16:40.25: Waiting for worker…
2026-04-16 16:47.26: Got resource from pool OCluster
Building on bremusa.ocamllabs.io
All commits already cached
HEAD is now at 807ad3d Make Linux and Posix eventfd functions configurable


(from ocaml/opam:debian-13-ocaml-5.4-flambda@sha256:eb5ed8d5d9e07fac2b9956de5da07948168d714f829b64b17f5a186a39c9742a)
2026-04-16 16:49.01 ---> using "b3b8f63b0dd4bfe7cbdf034c73eae4bc32b27d6c0fed74c34aad48145296ea60" from cache


/: (comment debian-13-5.4+flambda_opam-2.5)


/: (user (uid 1000) (gid 1000))


/: (env CLICOLOR_FORCE 1)


/: (env OPAMCOLOR always)


/: (workdir /src)


/src: (run (shell "sudo ln -f /usr/bin/opam-2.5 /usr/bin/opam"))
2026-04-16 16:49.01 ---> using "d6c60ed53902af98e35d69df1009efa3a6995cf6d10dc29620cd4453bb41c09a" from cache


/src: (run (shell "opam init --reinit -ni"))
Configuring from /home/opam/.opamrc and then from built-in defaults.
Checking for available remotes: rsync and local, git.
- you won't be able to use mercurial repositories unless you install the hg command on your system.
- you won't be able to use darcs repositories unless you install the darcs command on your system.


This version of opam requires an update to the layout of /home/opam/.opam from version 2.0 to version 2.2, which can't be reverted.
You may want to back it up before going further.


Continue? [Y/n] y
Format upgrade done.


<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2026-04-16 16:49.01 ---> using "b8851c62a9895f1dbcefd2a76081e79a64c48f1bf068e14bc7360cf0d294e0ee" from cache


/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Linux 6.8.0-107-generic
The OCaml toplevel, version 5.4.1
2.5.0
2026-04-16 16:49.01 ---> using "8626fe3b9ddfcd4bf561373e1b3056d0046d0d2b4fde6488e638c1d7a26c3551" from cache


/src: (workdir /src)


/src: (run (shell "sudo chown opam /src"))
2026-04-16 16:49.01 ---> using "1180efb32860fd26307010c0e347229d3d16ed89f0d6484774fa9210e83de384" from cache


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "cd ~/opam-repository && (git cat-file -e 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 || git fetch origin master) && git reset -q --hard 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 && git log --no-decorate -n1 --oneline && opam update -u"))
From https://github.com/ocaml/opam-repository
* branch                  master     -> FETCH_HEAD
42844088d7..0b0acbee05  master     -> origin/master
5f7bb1a6e6 Merge pull request #29704 from shonfeder/release-dune-3.22.2


<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>
[default] synchronised from git+file:///home/opam/opam-repository


Everything as up-to-date as possible
However, you may "opam upgrade" these packages explicitly at these versions (e.g. "opam upgrade ocaml.5.5.0"), which will ask permission to downgrade or uninstall the conflicting packages.
Nothing to do.
# To update the current shell environment, run: eval $(opam env)
2026-04-16 16:49.01 ---> using "50ee331a405648a52fc1d67e182fe8488ce7d1c34aa6dcb98455326a37538f0b" from cache


/src: (copy (src eio_windows.opam eio_posix.opam eio_main.opam eio_linux.opam eio.opam)
(dst ./))
2026-04-16 16:49.01 ---> using "ea1feab3c600880f256887d71847766ff919cbca012fac4b058cc48fc959cb96" from cache


/src: (run (network host)
(shell  "opam pin add -yn eio_windows.dev './' && \
\nopam pin add -yn eio_posix.dev './' && \
\nopam pin add -yn eio_main.dev './' && \
\nopam pin add -yn eio_linux.dev './' && \
\nopam pin add -yn eio.dev './'"))
[eio_windows.dev] synchronised (file:///src)
eio_windows is now pinned to file:///src (version dev)
[eio_posix.dev] synchronised (file:///src)
eio_posix is now pinned to file:///src (version dev)
[eio_main.dev] synchronised (file:///src)
eio_main is now pinned to file:///src (version dev)
[eio_linux.dev] synchronised (file:///src)
eio_linux is now pinned to file:///src (version dev)
[eio.dev] synchronised (file:///src)
eio is now pinned to file:///src (version dev)
2026-04-16 16:49.01 ---> using "a04cdb3fac2db31e73c1f88dcf5d6ecd6534eec36358a07807457a648ba2f87c" from cache


/src: (run (shell "echo '(lang dune 3.0)' > './dune-project'"))
2026-04-16 16:49.01 ---> using "fdd4746680b6a792664ac4f1cd9f0b23bfc25a86193733e7a642326021aba5d2" from cache


/src: (env DEPS "afl-persistent.1.4 alcotest.1.9.1 astring.0.8.5 backoff.0.1.1 base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base bigstringaf.0.10.0 camlp-streams.5.0.1 cmdliner.2.1.0 conf-bash.1 containers.3.18 cppo.1.8.0 crowbar.0.2.2 csexp.1.5.2 cstruct.6.2.0 domain-local-await.1.0.1 domain-local-timeout.1.0.1 dscheck.0.5.0 dune.3.22.2 dune-configurator.3.22.2 either.1.0.0 fmt.0.11.0 hmap.0.8.1 iomux.0.4 kcas.0.7.0 logs.0.10.0 lwt-dllist.1.1.0 mdx.2.5.2 mtime.2.1.0 multicore-magic.2.3.2 ocaml.5.4.1 ocaml-compiler.5.4.1 ocaml-config.3 ocaml-syntax-shims.1.0.0 ocaml-variants.5.4.1+options ocaml-version.4.0.4 ocamlbuild.0.16.1 ocamlfind.1.9.8 optint.0.3.0 oseq.0.5.1 psq.0.2.1 re.1.14.0 result.1.5 seq.base stdlib-shims.0.3.0 thread-table.1.0.0 topkg.1.1.1 tsort.2.2.0 uring.2.7.0 uutf.1.0.4 yojson.3.0.0")


/src: (env CI true)


/src: (env OCAMLCI true)


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam update --depexts && opam install --cli=2.5 --depext-only -y eio_windows.dev eio_posix.dev eio_main.dev eio_linux.dev eio.dev $DEPS"))
+ /usr/bin/sudo "apt-get" "update"
- Hit:1 http://deb.debian.org/debian trixie InRelease
- Get:2 http://deb.debian.org/debian trixie-updates InRelease [47.3 kB]
- Get:3 http://deb.debian.org/debian-security trixie-security InRelease [43.4 kB]
- Get:4 http://deb.debian.org/debian-security trixie-security/main amd64 Packages [123 kB]
- Fetched 213 kB in 0s (713 kB/s)
- Reading package lists...
- 


<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>
[eio.dev] synchronised (file:///src)
[eio_linux.dev] synchronised (file:///src)
[eio_main.dev] synchronised (file:///src)
[eio_posix.dev] synchronised (file:///src)
[eio_windows.dev] synchronised (file:///src)


[NOTE] Package ocaml-variants is already installed (current version is 5.4.1+options).
[NOTE] Package ocaml-config is already installed (current version is 3).
[NOTE] Package ocaml-compiler is already installed (current version is 5.4.1).
[NOTE] Package ocaml is already installed (current version is 5.4.1).
[NOTE] Package base-unix is already installed (current version is base).
[NOTE] Package base-threads is already installed (current version is base).
[NOTE] Package base-nnp is already installed (current version is base).
[NOTE] Package base-effects is already installed (current version is base).
[NOTE] Package base-domains is already installed (current version is base).
[NOTE] Package base-bigarray is already installed (current version is base).
# To update the current shell environment, run: eval $(opam env)
2026-04-16 16:49.01 ---> using "fbbde1ecac6a72527d39fe69d0cfd2d9496ffda58eaca8a779412221aaa748ef" from cache


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam install $DEPS"))
[NOTE] Package ocaml-variants is already installed (current version is 5.4.1+options).
[NOTE] Package ocaml-config is already installed (current version is 3).
[NOTE] Package ocaml-compiler is already installed (current version is 5.4.1).
[NOTE] Package ocaml is already installed (current version is 5.4.1).
[NOTE] Package base-unix is already installed (current version is base).
[NOTE] Package base-threads is already installed (current version is base).
[NOTE] Package base-nnp is already installed (current version is base).
[NOTE] Package base-effects is already installed (current version is base).
[NOTE] Package base-domains is already installed (current version is base).
[NOTE] Package base-bigarray is already installed (current version is base).
The following actions will be performed:
=== install 45 packages
- install afl-persistent       1.4
- install alcotest             1.9.1
- install astring              0.8.5
- install backoff              0.1.1
- install bigstringaf          0.10.0
- install camlp-streams        5.0.1
- install cmdliner             2.1.0
- install conf-bash            1
- install containers           3.18
- install cppo                 1.8.0
- install crowbar              0.2.2
- install csexp                1.5.2
- install cstruct              6.2.0
- install domain-local-await   1.0.1
- install domain-local-timeout 1.0.1
- install dscheck              0.5.0
- install dune                 3.22.2
- install dune-configurator    3.22.2
- install either               1.0.0
- install fmt                  0.11.0
- install hmap                 0.8.1
- install iomux                0.4
- install kcas                 0.7.0
- install logs                 0.10.0
- install lwt-dllist           1.1.0
- install mdx                  2.5.2
- install mtime                2.1.0
- install multicore-magic      2.3.2
- install ocaml-syntax-shims   1.0.0
- install ocaml-version        4.0.4
- install ocamlbuild           0.16.1
- install ocamlfind            1.9.8
- install optint               0.3.0
- install oseq                 0.5.1
- install psq                  0.2.1
- install re                   1.14.0
- install result               1.5
- install seq                  base
- install stdlib-shims         0.3.0
- install thread-table         1.0.0
- install topkg                1.1.1
- install tsort                2.2.0
- install uring                2.7.0
- install uutf                 1.0.4
- install yojson               3.0.0


<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved afl-persistent.1.4  (cached)
-> retrieved alcotest.1.9.1  (cached)
-> retrieved astring.0.8.5  (cached)
-> retrieved backoff.0.1.1  (cached)
-> retrieved bigstringaf.0.10.0  (cached)
-> retrieved camlp-streams.5.0.1  (cached)
-> installed conf-bash.1
-> retrieved cppo.1.8.0  (cached)
-> retrieved cmdliner.2.1.0  (cached)
-> retrieved crowbar.0.2.2  (cached)
-> retrieved csexp.1.5.2  (cached)
-> retrieved domain-local-await.1.0.1  (cached)
-> retrieved domain-local-timeout.1.0.1  (cached)
-> retrieved dscheck.0.5.0  (cached)
-> retrieved cstruct.6.2.0  (cached)
-> retrieved either.1.0.0  (cached)
-> retrieved fmt.0.11.0  (cached)
-> retrieved hmap.0.8.1  (cached)
-> retrieved iomux.0.4  (cached)
-> retrieved containers.3.18  (cached)
-> retrieved kcas.0.7.0  (cached)
-> retrieved logs.0.10.0  (cached)
-> retrieved lwt-dllist.1.1.0  (cached)
-> retrieved mtime.2.1.0  (cached)
-> retrieved multicore-magic.2.3.2  (cached)
-> retrieved ocaml-syntax-shims.1.0.0  (cached)
-> retrieved mdx.2.5.2  (cached)
-> retrieved ocaml-version.4.0.4  (cached)
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved optint.0.3.0  (cached)
-> retrieved oseq.0.5.1  (cached)
-> retrieved psq.0.2.1  (cached)
-> retrieved result.1.5  (cached)
-> retrieved seq.base  (cached)
-> installed seq.base
-> retrieved stdlib-shims.0.3.0  (cached)
-> retrieved re.1.14.0  (cached)
-> retrieved thread-table.1.0.0  (cached)
-> retrieved tsort.2.2.0  (cached)
-> retrieved topkg.1.1.1  (cached)
-> retrieved uutf.1.0.4  (cached)
-> retrieved yojson.3.0.0  (cached)
-> retrieved uring.2.7.0  (cached)
-> retrieved dune.3.22.2, dune-configurator.3.22.2  (cached)
-> installed cmdliner.2.1.0
-> installed ocamlfind.1.9.8
-> installed ocamlbuild.0.16.1
-> installed topkg.1.1.1
-> installed hmap.0.8.1
-> installed mtime.2.1.0
-> installed uutf.1.0.4
-> installed fmt.0.11.0
-> installed astring.0.8.5
-> installed logs.0.10.0
-> installed dune.3.22.2
-> installed lwt-dllist.1.1.0
-> installed either.1.0.0
-> installed afl-persistent.1.4
-> installed csexp.1.5.2
-> installed backoff.0.1.1
-> installed camlp-streams.5.0.1
-> installed cstruct.6.2.0
-> installed multicore-magic.2.3.2
-> installed ocaml-syntax-shims.1.0.0
-> installed ocaml-version.4.0.4
-> installed optint.0.3.0
-> installed oseq.0.5.1
-> installed psq.0.2.1
-> installed result.1.5
-> installed stdlib-shims.0.3.0
-> installed thread-table.1.0.0
-> installed cppo.1.8.0
-> installed tsort.2.2.0
-> installed crowbar.0.2.2
-> installed re.1.14.0
-> installed domain-local-await.1.0.1
-> installed domain-local-timeout.1.0.1
-> installed yojson.3.0.0
-> installed kcas.0.7.0
-> installed dune-configurator.3.22.2
-> installed alcotest.1.9.1
-> installed bigstringaf.0.10.0
-> installed iomux.0.4
-> installed uring.2.7.0
-> installed mdx.2.5.2
-> installed containers.3.18
-> installed dscheck.0.5.0
Done.


<><> afl-persistent.1.4 installed successfully ><><><><><><><><><><><><><><><><>
=> afl-persistent is installed, but since the current OCaml compiler does
not enable AFL instrumentation by default, most packages will not be
instrumented and fuzzing with afl-fuzz may not be effective.


To globally enable AFL instrumentation, create an OCaml switch like:


opam switch create 5.4.1+afl ocaml-variants.5.4.1+options ocaml-option-afl
# To update the current shell environment, run: eval $(opam env)
2026-04-16 16:49.35 ---> saved as "90ef2904655de026f4828b07cf0b8f3c1aa0cdf8f3c27bdb2bb1c12338c7fc8b"


/src: (copy (src .) (dst /src))
2026-04-16 16:49.36 ---> saved as "7d6dd615af4c5b0275177be1727a9f8b16cbdf7488d147f54eb9bd5d7856b521"


/src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))
(cd _build/default/fuzz && ./fuzz_inherit_fds.exe)
inherit_fds: PASS


(cd _build/default/fuzz && ./fuzz_buf_read.exe)
random ops: PASS


(cd _build/default/fuzz && ./fuzz_buf_write.exe)
random ops: PASS


(cd _build/default/lib_eio_linux/tests && ./test.exe)
Testing `eio_linux'.
This run has ID `KYEOEHMV'.


[OK]          io          0   copy.
[OK]          io          1   direct_copy.
[OK]          io          2   poll_add.
[OK]          io          3   poll_add_busy.
[OK]          io          4   iovec.
[OK]          io          5   no_sqe.
[OK]          io          6   read_exact.
[OK]          io          7   expose_backend.
[OK]          io          8   statx.
[OK]          io          9   signal_race.
[OK]          io         10   alloc-fixed-or-wait.


Full test results in `/src/_build/default/lib_eio_linux/tests/_build/_tests/eio_linux'.
Test Successful in 0.023s. 11 tests run.
2026-04-16 16:50.07 ---> saved as "0eace73049bd3b9c6d0bcec4d686474a54c2cd250bfc3639d8767d57727b33d1"
Job succeeded
2026-04-16 16:50.07: Job succeeded